{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "CONCLUSIONS : Nephropathy induced by contrast medium may be less likely to develop in high - risk patients when iodixanol is used rather than a low - osmolar , nonionic contrast medium ."}
{"Disease": ["Nephropathy"], "Chemical": ["iodixanol"]}